FabricPath brings the benefits of routing protocols to layer 2 network Ethernet environments. What are the advantages of using FabricPath technology？ （）   

• A、 FabricPath provides MAC address scalability with conversational learning
• B、 Loop mitigation with TTL in the frame field
• C、 STPl independence
• D、 10 Gbps bandwidth
• E、 Layer 2 extensions between data centers